Wheeled scraper



(No Mode 1.) 3 Sheets-Sheet 1.

P. DEEVY.

WHEBLBD SGRAPER.

ATTORNEYS.

WITNESSES (No Model.) 7 3 Sheets-Sheet 2. P. DEEVY.

WHBELED SORAPER. No. 346.147. Patented July 27, 1886 (No Modl.) sShee'ts-Sheet s.

P. DEEVY.

WHBBLED SGRAPER. No. 346,147.

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WITNESSES jINVENTOR ATTORNEYS.

N PETERS mummr. Washingmu n. a

Patented July 27, 1886.

' UNiTEID PATENT OFFICE. J

PATRICK DEEVY, on DUDLEY, IOWA.

v wfl -ua rare-uv SCR'APER.

SPECIFICATION formingpa rt of Letters Patent Nd. 346,147, dated July 27,1886.

Application filed June 6, 1885.

binations of parts, substantially as hereinafter set forth, and pointedout in the claims.

Reference is to be had-to the accompanying drawings, forming part ofthis specification, in

which similar letters of reference indicate cor.-

sponding parts in all the figures.

Figure 1 is a side elevation of my improved scraper, partly in section,showing in full-lines the positions of the parts when the'bowl is loadedand raised from the ground in order to transport the load to the dumpingplace, and also showing, in dotted lines, the positions the parts assumeafter the load has been dumped, this also being the position in whichthe parts are placed hen the scraper is moved from place to place. Fig.2 is also a side elevation, partly in section, showing the -scraper-bowlin position to be filled; and Fig.

3, plan view of my improved scraper.

The scraper-bowl A is'made in the general form of a scoop, except thatinstead of having parallel sides it is formed so as to be somewhatnarrower at its open end or mouth than at its closed rear end, as shownin Fig. 3. Thisconstruction is adopted in order to give a wedge-likeaction to the bowl when it is-being filled, and also in order that theentering earth will not bind upon the inner surfaces of the'sides of thescraper-bowl. I I

To the sides of the bowl A there are secured the suspending-bars-B B,which extend above the upper side of the bowl, and are there providedwith eyes, through which passes the cross-bar a of the cranked axle ofthe scraper.

The main supporting-frame of the scraper consists, first, of the crankedaxle, which is made up of the journals 0 O, that carry the wheels 0 ofthe scraper, the crank-armsD D,

to which the journals 0 G are secured, and

the crank-bard, from which, as before mentioned, the bowl A is suspendedmeans of Serial No. 167,897. (No model.)

the bars B B; second, of the lever-frame E, which is made integral withor rigidly secured to the crank-arms D D, and extends around the rearend of the bowl, being there provided with two brace-rods, b b, whichproject out ward and are bolted to the lever F, said lever means of itsupwardly-curved forward end F. As the lever F is lowered, the crank-armsD D are brought nearer to the vertical plane of the fulcrumof thelever-i. 0., the journals 0 O-and consequently the effect of the powerapplied is increased as the lever approaches the ground. l

lyconnected, and are so shaped and formed that when the lever F is in ahorizontal position, as shown in full-lines in Fig. 1, the bowl A willhang in the position indicated in said thegravitating latch G, which ispivoted to a projection, 0, extending outward from the the latch G toengage with the frame E, by means of its hooked catch-arm d, theprojection 0 acting as a stop to limit the range of motion of the leverF. The gravitating latch G is formed in the shape of a bell-crank, andis preferably pivoted to the projection c at shown in the drawings, isbeveled off at the top, while the lower or lever arm projects outwardfrom the bowl and tends by its weight constantly to throw the upper endof the catchbowl itself acts as a stop to limit the throw of the latch,and prevents the upper end of the catch-arm from being carried out toofar, the latch will always act to automatically catch upon the bar Ewhen the lever F is brought with the projection c, the bar E being, bythe throw of the lever, brought against the beveled surface of thecatch-arm d.

The draft-bars H H are pivoted in loops 4: 2", formed at the-lower endsof the suspendingbars B B, and are connected in front of the scraper bythe brace-piece I, beyond which the said draft-bars are bent in so as toact as rangement I secure a very strong connection being rigidly securedto the cross-bar a by.

back of the scraper-bowl in position to allow about the center of itscatch-arm, which, asv

- All parts of the supporting iframe are rigidfigure, its rear end beingupheld by means of 1 arm outward from the bowl, so that while the 1 downto a horizontal position, or in contact IOO braces to the tongue or poleK. By this ar tain times to hold the parts in their properv positions, Iprovide each draft-bar with a shoulder, as h h, which bear against theloops i i, as shown in Fig. 1.

The brace-piece I carries an upright standard, L, the top of which isslotted, and within the slot so formed there is pivoted a hookedcatch-arm, M, which serves to hold thescraperbowl and its connections intheposition-shown in dotted lines in Fig. 1, byengaging with a, flange,e, 011 a projection, f, that is securedzto The slot in the standard L,in which the catch-arm M ispivthe-back of the scraper-bowl.

otedisonly just deep enough to allow for the necessary range'in themovement of said arm, I sothat when the pawl is in the position showninFig. 1,full lines, thecatch-arm willbe'supported, as illustratedin saidfigure. The free endof the catch-arm M is curved upwardyso as to rideoverthe bar a and'the back upper,

edge of the scraper-bowl, and also over the bar E, such formation beingadopted-in order that when the bowl is dumped, by being pulled. =over-tothe position shown in dotted-lines in- -Fig. 1, the catch willautomaticallyengage with-the flange e and hold the parts in'the positionindicated until the engagement is broken 1 by the operator.

When it is desired to fill the scraper-bowl, thelatch G is thrown out ofengagement with the frame E, and the bowl-dropped to-theposition shownin Fig. 2, the operator at this time having hold of the handlesN N,bymeans of which thebowl is held to its work and tilted In order,however, to prevent the bowl from being accidentally to the desiredangle.

dumped during the process of'filling, Ipivotally secure to eachof thedraw barsa-short strip of metal, as o o, in the rear end of .which thereis a longitudinal slot, as p p.

Secured to studs upon the sides of the scraper bow], at points near itsforward end, are two arms, 0 and O, which are preferably slightly bent,as shown, and which are pivoted to theirsupports at points slightlybelowtheir centers. The upper ends of these arms 0 O are connected toprojecting ends or lugs e of the frame Eby links P and P,andattheir-lower ends these arms 0 O carry pinsr 1*, that rare arrangedto engage with the slots 1) pwthen the bowl A islowered to befilled. Theoscillating strips 0 0 are eaclraprov-ided with twowhile a certainamount of play is allowed'the strips will be held withina limited rangeof motion, and will thus prevent thebowl-from being dumped until thepins r r are withdrawn fromengagement with the slots '19 p. Afterthebowl is filled .the lever F is lowered until the bowl is raised from theground and the catch-arm of the latch Gr brought into engagement withthe frame E, and as the lowering of the lever F carries forwardthe-projecting end 6 of the frame E the upper ends of the arms 0 O arein turn forced forward through the medium of the links 1? P, whichmovement of the arms 0 0 will withdraw the pins r r from the slots p pand leave the bowl free to be dumped. This dumping of thebowl isaccomplished by forcing the -lever F'-upward until the forward edge ofthe scraper is brought in contact with the ground, and as at thistimethe team employed to drag ,the-scraper must be in motion, the continuedadvance of the "scraper, the forward edge of .thebowlbeing heldstationary-by its contact withithecgroundmill force theparts to thepo-.sitionshown in-dotted lines in Fig. 1.

The continual wear incident to the dragging -of the -bottom: ofthe-scraper upon the ground would soon wear it through if it wasunproitected, :and-to; guard against this danger Iapply astrip-of steel,:as T, which I rivet tothe .bottom-of thebowl.

Having thus-described my invention, what lclaim as -new,.anddesire tosecure by Letters Patent, is-

1. A :wheeled scraper provided with. an au- -tomaticlockipgdeviceconsisting of a catchiarm, as M, ,pivotally mounted on a standard, was.-L,"the free end ofsaid catch-arm being -eur-ved; upward, aswshown, allsubstantially as 1 'anisnr-consisting of a slotted strip pivotallyconnected :to and having a limited range. of motionlupon the draft-bars,a lever-arm pivoted to .the scraper-bowl and provided with z a pinat-its'lower-end. adapted'to engage with the slotted strip, and alinkconnecting said lever-arm-with the main-lever frame, substanhti ally asset forth.

4. In a wheeled scraper, the combination, with the-"cranked axle, of ascraper-bowlpivr otally-sconnected thereto, draft-bars, asH H,

provided with slotted vibrating strips, as 0 o, leVerWarmaasOO, links,asPP, and a main operating lever,substantially as described.

"5. In a =wheeled-scraper, the combination,

"ywithta crank-axle,- of a scraper-bowl and a manipulatingrleversupported by a frame, E,wit-hinavhich .the bowl-swings, and an arm,'F,'ar- --ranged above the bowl, substantially asdescribed.

6. In a wheeled scraper, the combination of ing-armsformed with eyesattheirnpper ends, 10 the following-named elements: bowl A, susthroughwhich eyes the cross-bar of the crankpending-arms B B, crank-axle leverF, the axle passes,and with loops at their lower ends, frame of which isarranged so that the bowl I and draft-bars formed with shoulders h, sub-5 may swing therein, latch G, having an extendstantially as described.

ing manipulating-arm, and stop a, substan- PATRICK DEEVY. tially asdescribed. Witnesses:

7. In a wheeled scraper, the combination, JoE. J. CoNNELL,

with a crank-axle, of ascraper-bowl, snspend- H. W. CARVER.

